X = 2y - 7

4x + y = 71

Yuki's guppies have begun to have babies. She started with 5 guppies. One week later, Yuki counted twice as many guppies in the fish tank. Each week afterwards, the number of guppies doubled. In how many weeks did Yuki have 160 guppies?

Write a problem that uses a fraction greater than 1?

A video game displays 150 frames in 6 seconds on Penelope's computer. What is the rate in frames per second

Simplify the expression 2√ 20 - 3√ 7 - 2√ 5 + 4√ 63. A. 2√ 20 - 4√ 7 - 2√ 5 B. 2√ 20 - 3√ 7 - 2√ 5 + 4√ 63 C. 2√ 20 - 3√ 7 + 4√ 63 D. 2√ 5 + 9√ 7

Jerome recently moved to a new city and bought a home. The assessment rate is 51%. The property tax rate is $53.26 per $1000. What is the effective tax rate? Show all work.

A penny is 0.061 inch thick. What is the value of the 6 in the thickness of a penny

After 3x - y = 7 is put in slope intercept form, the slope and intercept are: A. m = 3, b = 7 B. m = - 3, b = - 7 C. m = 3, b = - 7 D. m = - 3, b = 7

Write a situation for 15x - 20 ≤ 130 and solve

Using first and second differences, calculate the next three terms in the following sequence. 7, 9, 15, 26, 43, ... A. 67, 99, 140 B. 72, 106, 149 C. 66, 98, 139 D. 66, 98, 141

It costs $135.35 for 15 child tickets to the museum. Adult tickets cost $12.95 each. Find the cost for 40 children to attend along with 5 adult chaperones.